package com.heima.behavior.service.impl;

import com.heima.behavior.service.ApArticleBehaviorService;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.common.exception.CustException;
import com.heima.common.user.UserRelationConstants;
import com.heima.model.behavior.dtos.ArticleBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApCollection;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.behavior.pojos.ApUnlikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.HashMap;

@Service
@Slf4j
public class ApArticleBehaviorServiceImpl implements ApArticleBehaviorService {
    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;
    @Autowired
    MongoTemplate mongoTemplate;
    @Autowired
    StringRedisTemplate redisTemplate;
    /**
     *文章行为
     * @param dto
     * @return {"isfollow":true,"islike":true,"isunlike":false,"iscollection":true}
     */
    @Override
    public ResponseResult loadArticleBehavior(ArticleBehaviorDTO dto) {
        //1. 判断用户是否登录
        ApUser user = AppThreadLocalUtils.getUser();
        if (user==null){
        //2. 未登录 直接将 4种行为 均返回false
            HashMap<String, Boolean> map = new HashMap<>();
            map.put("isfollow",false);
            map.put("islike",false);
            map.put("isunlike",false);
            map.put("iscollection",false);
            return ResponseResult.okResult(map);
        }
        //3. 如果登录
        HashMap<String, Boolean> map = new HashMap<>();
        //4. 查询行为实体
        ApBehaviorEntry entry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());

        Query query = Query.query(Criteria.where("entryId").is(entry.getId()).and("articleId").is(dto.getArticleId()));
        //5. 根据行为实体 文章ID查询 是否点赞
        ApLikesBehavior apLikesBehavior = mongoTemplate.findOne(query, ApLikesBehavior.class);
        map.put("islike",isNull(apLikesBehavior));

        //6. 根据行为实体 文章ID查询 是否不喜欢
        ApUnlikesBehavior apUnlikesBehavior = mongoTemplate.findOne(query, ApUnlikesBehavior.class);
        map.put("isunlike",isNull(apUnlikesBehavior));

        //7. 根据行为实体 文章ID查询 是否收藏
        ApCollection apCollection = mongoTemplate.findOne(query, ApCollection.class);
        map.put("iscollection",isNull(apCollection));

        //8. 根据登录用户id 去redis中查询是否关注该作者
        Integer authorApUserId = dto.getAuthorApUserId();

        Double score = redisTemplate.opsForZSet()
                .score(UserRelationConstants.FOLLOW_LIST + user.getId(), String.valueOf(authorApUserId));
        map.put("isfollow",isNull(score));

        //9. 封装结果 返回
        return ResponseResult.okResult(map);
    }

    private Boolean isNull(Object obj){
        boolean flag=true;
        if (obj==null){
            flag=false;
            return flag;
        }
        return flag;
    }
}
